EM65101
128COM/160SEG 16 Gray Scale Level LCD Driver
The increment control of X and Y addresses by AIM, AYI, and AXI registers are listed
as follows.
AIM
Address Increment Timing
When writing to Display RAM or reading from Display RAM
This is effective when accessing successive address area
Only when writing to Display RAM
0
1
This is effective in the case of “Read Modify Write”
Sequence for Read Modify Write
Set
AXI=1,AYI=1
AIM=1
Set Modify read
Dummy read
Repeat 4
times
Read 1 byte RAM
data
X address
autoincrement 1
Write 1 byte
RAM data
Yes
Write
Continuous?
No
End
Figure 8-2 Read Modify Write Flow Chart
48 •
Product Specification (V0.4) 08.15.2005
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
